公开(公告)号：US20240094401A1

公开(公告)日：2024-03-21

申请号：US18514635

申请日：2023-11-20

Applicant: Aurora Operations, Inc.

Inventor： Zeb Barber ,  Stephen Crouch ,  Emil Kadlec

IPC: G01S17/931 ,  G01S7/481 ,  G01S7/4912 ,  G01S17/34 ,  G05D1/00

CPC classification number: G01S17/931 ,  G01S7/4814 ,  G01S7/4912 ,  G01S17/34 ,  G05D1/0088 ,  G05D1/0223

Abstract: A system and method for combining multiple functions of a light detection and ranging (LIDAR) system includes receiving a second optical beam generated by the laser source or a second laser source, wherein the second optical beam is associated with a second local oscillator (LO); splitting the second optical beam into a third split optical beam and a fourth split optical beam; transmitting, to the optical device, the third split optical beam and the fourth split optical beam; receiving, from the optical device, a third reflected beam that is associated with the third split optical beam and a fourth reflected beam that is associated with the fourth split optical beam; and pairing the third reflected beam with the second LO signal and the fourth reflected beam with the second LO signal.

公开(公告)号：US11858533B2

公开(公告)日：2024-01-02

申请号：US17494188

申请日：2021-10-05

Applicant: AURORA OPERATIONS, INC.

Inventor： Stephen Crouch ,  Zeb Barber ,  Emil Kadlec ,  Ryan Galloway ,  Sean Spillane

IPC: B60W60/00 ,  G01S17/931 ,  G01S17/34 ,  G01S17/58 ,  G01S7/481 ,  G01S7/4912

CPC classification number: B60W60/0025 ,  G01S7/4811 ,  G01S7/4817 ,  G01S7/4912 ,  G01S17/34 ,  G01S17/58 ,  G01S17/931 ,  B60W2420/52 ,  B60W2552/05 ,  B60W2552/53 ,  B60W2554/4029

Abstract: An autonomous vehicle control system includes one or more processors. The one or more processors are configured to cause a transmitter to transmit a transmit signal from a laser source. The one or more processors are configured to cause a receiver to receive a return signal reflected by an object. The one or more processors are configured to cause one or more optics to generate a first polarized signal of the return signal with a first polarization, and generate a second polarized signal of the return signal with a second polarization. The one or more processors are configured to calculate a value of reflectivity based on a signal-to-noise ratio (SNR) value of the first polarized signal and an SNR value of the second polarized signal. The one or more processors are configured to operate a vehicle based on the value of reflectivity.

公开(公告)号：US20230176224A1

公开(公告)日：2023-06-08

申请号：US18160836

申请日：2023-01-27

Applicant: Aurora Operations, Inc

Inventor： Zeb Barber ,  Stephen Crouch ,  Emil Kadlec

IPC: G01S17/931 ,  G01S17/34 ,  G01S7/481 ,  G05D1/00 ,  G01S7/4912

CPC classification number: G01S17/931 ,  G01S17/34 ,  G01S7/4814 ,  G05D1/0088 ,  G01S7/4912 ,  G05D1/0223

Abstract: A system and method for combining multiple functions of a light detection and ranging (LIDAR) system includes receiving a second optical beam generated by the laser source or a second laser source, wherein the second optical beam is associated with a second local oscillator (LO); splitting the second optical beam into a third split optical beam and a fourth split optical beam; transmitting, to the optical device, the third split optical beam and the fourth split optical beam; receiving, from the optical device, a third reflected beam that is associated with the third split optical beam and a fourth reflected beam that is associated with the fourth split optical beam; and pairing the third reflected beam with the second LO signal and the fourth reflected beam with the second LO signal.

公开(公告)号：US20230131090A1

公开(公告)日：2023-04-27

申请号：US18084492

申请日：2022-12-19

Applicant: Aurora Operations, Inc.

Inventor： Chunshu Li ,  Stephen Crouch

IPC: G01S7/35 ,  G01S13/34 ,  B60W60/00 ,  G01S13/931 ,  G01S7/40

Abstract: A vehicle radar sensor utilizes Frequency Modulated Continuous Wave (FMCW) radar signals that incorporate non-uniform FMCW chirps having chirp profiles that differ from one another to sense one or more parameters of one or more objects in a field of view of the radar sensor. The chirp profiles may differ from one another in various manners, e.g., based on starting frequency, repetition interval, duration and/or slope, and among other advantages, may be used to enhance sensing of various parameters such as range, Doppler/velocity and/or angle.